Re: Fermat's little theorem

A little prove for Fermat's theorem:Consider is a group with p-1 elements so from a corollary of Lagrange's theorem
Another way to prove is considering we have p pearls of a colours and strings .If we throw away the monocolour strings we have strings.Now we connect the ends of each string and results a necklace.knowing that a necklace doesn't differ by a rotation we have different necklaces hence the conclusion.